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歡迎來到鹽山昱通螺旋鋼管實體生產企業！

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鹽山昱通管道

專業生產銷售大口徑厚壁國標螺旋鋼管，廠內加工防腐/保溫/涂塑

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蘭溪螺旋鋼管廠家

蘭溪螺旋鋼管廠家

螺旋鋼管在出廠之前應做機械性能試驗和壓扁試驗以及擴口試驗，并要達到標準規定的要求。帶鋼對焊焊縫及與螺旋焊縫相交的丁型接頭的所在管，全部經過X射線電視或拍片檢查。每根鋼...

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